Mary Elizabeth Clark is known for her many published works for piano, organ and music theory. In 1972, she founded the Myklas Music Press, which was acquired by Alfred Publishing Co., Inc. in 2004.
Mrs. Clark is the author and editor of the Now Hear This ear training course and the Piano Tomorrow Series. She is also the co-author of the Glover Piano Library and the Belwin Organ Library.
Mrs. Clark served on the piano faculty of Elmhurst College in Illinois for five years and maintained an independent piano studio for many years. She is a past president of the Colorado State Music Teachers Association and served as a National Guild adjudicator for many years. She is now retired and lives in California.